| article html file updated | 8 February 2020 01:24 CET | Update | https://www.mdpi.com/2220-9964/6/3/80 |
| article html file updated | 4 May 2019 06:53 CEST | Update | - |
| article html file updated | 28 March 2017 11:10 CEST | Update | - |
| article html file updated | 14 March 2017 09:31 CET | Original file | - |
| article xml uploaded. | 14 March 2017 09:29 CET | Update | https://www.mdpi.com/2220-9964/6/3/80/xml |
| article pdf uploaded. | 14 March 2017 09:29 CET | Version of Record | https://www.mdpi.com/2220-9964/6/3/80/pdf |
